Friday, January 24, 2014

ScienceDaily: Astronomy News

ScienceDaily: Astronomy News


Galaxies on FIRE: Star feedback results in less massive galaxies

Posted: 22 Jan 2014 12:39 PM PST

For decades, astrophysicists have encountered a contradiction: although many galactic-wind models -- simulations of how matter is distributed in our universe -- predict that most matter exists in stars at the center of galaxies, in actuality these stars account for less than 10 percent of the matter in the universe. New simulations offer insight into this mismatch between the models and reality: energy released by individual stars can have a substantial effect on where matter ends up.

Bright star reveals new Neptune-size exoplanet

Posted: 22 Jan 2014 10:40 AM PST

A team of astronomers has discovered a new exoplanet, christened Kepler-410A b. The planet is about the size of Neptune and orbits the brightest star in a double star system 425 light years from Earth.

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